CVE-2026-116477

MediumCVSS 4.3/10Last modified Oct 31, 2026

Description

A security vulnerability has been detected in a2aproject a2a-dotnet up to 1.0.0-preview2. The impacted element is the function A2AJsonRpcProcessor.ProcessRequestAsync of the file src/A2A.AspNetCore/A2AJsonRpcProcessor.cs of the component Parser. The manipulation leads to information exposure through error message. It is possible to initiate the attack remotely. Upgrading to version 1.0.0-preview3 is sufficient to resolve this issue. The identifier of the patch is ccbd12b6108a6a8f0fd5d8b4a9ece3c8a94ba1e4. Upgrading the affected component is recommended.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-200 CWE-209

Affected software

Vendor	Product	Versions
a2aproject	a2a-dotnet	1.0.0-preview2

References

Timeline

Published: Oct 26, 2026
Last modified: Oct 31, 2026
NVD status: Deferred

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